Assigjstob of one-half



(No Model.) 2 Sheets-Sheet 1..

L. P. BBAULT.

PAPER FOLDING MACHINE.

No. 323,568. Patented Aug. 4, 1885...

N. PETERS. PhctoLlha .D.C

(No Model.) 2 Sheets-Sheet 2.

L. P. BRAULT.

PAPER FOLDING MACHINE.

No. 323,558. Patented Aug 4, 1882 Wat E55E5 I l VE tn wuw wfimw &1??? q 3 N, PETERS. FhaimLilhognphur. Wasnmgtnn. n. c

arena triers,

, Unrrnn LOUIS 1. BRAULI, OF LOlVELL, MASSACHUSETTS, ASSIGNOR OF ONE-HALF TO HILAIRE DOZOIS, OF SAME PLACE.

PAPER-FOLDING MACHINE.

:BPEQIEIGATION forming part of Letters Patent No, 323,558, dated August 4, 1885.

Application filed April 8,1884. (N model.)

To all whom, it may concern: H aredriven by the roll D,(which is revolved Be it known that I, LOUIS I. BRAULT, a by the usual mechanism, not shown, as it is subject of Victoria, Queen ofthe United King not a part of my inventiom) and pass under dom of Great Britain and Ireland, and resid the shaft E and rest upon idle-pulleys placed 5 iug at Lowell, in the county of Middlesex and thereon, as shown by the dotted circles in Commonwealth of Massachusetts, have in- Fig. 3.

vented certain new and useful Improvements The above-enumerated parts are well known.

in Paper-Folding Machines, of which the fol and are not of my invention, and therefore lowing is a specification. need no further description.

10 My invention relates to paper-folding ma- There are usually two vertical gages, or a chines, particularly such as are connected with gage formed in two parts, which, standing at newspaper printing-presses; and it has for its right angles to the path of the conductingobjcctto discharge fromthe machine any sheets tapes, stop the printed sheet on the table in which are damaged or dirty without stopping the proper place for the first folding operation,

1 the machine and before folding the paper. these gages being adjustable only toward or In the accompanying drawings, on two from the shaft E by means ofa set-screw passsheets, Figure l is a side elevation of such a ing through a slotted shank at right angles to folding-machine with my invention applied the gage and into the table H. The gages I thereto, but not in use; also, the feed-table use are preferably two in number, H II", and

20 and a part of the frame of a printing-press; are each provided with a shank, h h, at right Fig. aside elevation of a portion of the foldangles to the vertical part of the gage, and each ingmachinc and my invention applied thereshank runs through a collar, 7r h, secured to to with the gage raised; Fig. 3, an elevation the rock-shaft J To the end of the rocleshaft of the other side of the folding-machine with J nearest to the printers platform is secured my improvement attached thereto; Fig. 4, a a pendent arm, K To a bracket, K secured plan of the same. to the side of the printing-press frame, is piv A is the frame of a printing-press; B,'the oted, at K, a bell-cranklever, K Figs. 1 and 'fecdtable; G,thc platform on which theprinter 2. The upper end of said beltcrank lever K stands; D, the press tape-roll; E, a sprocketis connected by the connecting-rod K K to 0 wheel, and 13 a chain by which the sprocket the lower end of the arm K so that when the wheel is driven; F, a pulley on the shaft E of lower arm of the bell-crank lever is depressed the sprocket-wheel, and F a belt connecting by the foot of the printer the shaft .I 5 is rocked, the pulley F to the pulley G of the upper tapelifting the gages secured thereto and allowing roll, G; H, the folding-table; I I, foldingthe sheet,whioh would otherwise be stopped by rolls, the roll I being provided with the bevelthe gages, to be conducted over and beyond gear 5, which takes into the bevel-gear t" on the folding-machine and onto the floor or into the shaft E" of the sprocket-wheel E, the other a suitable receptacle for waste paper. feeding-roll, I, being rotated by the friction In order that the folding-machine may be of the transverse tapes, (not shown;) J, the disconnected from the press in the usual man- 40 iolding-knife, by means of which and the rolls ner when occasion requires, the rod is made 0 I I the first fold is given to the sheet of paper in two parts or lengths, one, K", of which is that comes from the press. J J are arms, to provided with a hook, if, and the other, K, the outer ends of which the knife J is secured, with an eye, k, said hook and eye engaging and which are themselves secured to the roclc with each other when the folding-machine is 5 shaft J", the latter being rocked in the usual in use. The longer part K of the rod is sup- 5 manner. The sheets of paper, after being ported in and slides in a bracket, 7:, on the printed,are carried by the tapes G and H onto side of the frame of the foldinganachine. the table II beneath the knife J, which then In order that the paper may be guided descends, pressing the paper between the foldthrough the folding-machine more certainly,

5o ing-rolls I l in the usual manner. The tapes I provide an additional set of endless tapes, roc

H one or more tapes on each side of the knife J, which are run from the lower tape-roll, G around loose pulleys J" on rock-shaft J The direction in which these tapes run is shown by arrowsthat is, the lower half of the tapes H run in the same direction with the paperthat is, to the left, in Figs. 3 and 4--so that the paper is held between two tapes traveling in the same direction.

In place of the upper tapes, guide-wires may be used, if properly disposed, but are not as desirable, because they do not so much assist the passage of the paper, and do not prevent its folding or creasing; and, besides, the two tapes H H will carry out a folded or double sheet, meaning two sheets fed together.

To prevent the knife J, which is raised, as usual, by an automatic positive mechanism, but falls of its own weight between the fold ing-rolls I I, from descending on the sheet while the gages are raised, there is a rod, H secured to the rock-shaft J just as the shanks of the gages are secured, which rod projects over the folding-knife, and is provided with an upwardly-projecting loop, H". This loop is connected to the knife by a link, H, which is passed through a hole in the knife J, so that when the printer rocks the shaft J to raise the gages H H he thereby holds up the knife until the paper has passed out of the machine. The loop 11 is of such a length that the lifting of the knife in the usual manner will not rock the shaft and thereby raise the gages. v

The proper time for the printer to operate the bell-crank lever is when he is putting the paper in the grippers, at which time the preceding sheet will be entering the first folding-rolls I I, and he holds the gages raised until the next sheet is caught by the grippers. An average speed for a cylinder-press is about twenty-five or thirty impressions a minute for each cylinder, so that there is no time for the person feeding the press to throw a damaged or dirty sheet from the pile between the revo lutions -of the cylinder, and if the cylinder were allowed to revolve against the form of type, it would be inked and would dirty the next three or four sheets of paper. Again. if a damaged or dirty sheet is allowed to enter the folding-machine, the defects in it cannot sometimes be discovered without unfolding the papers,which, in the ease of adaily paper of considerable circulation, would be practically impossible. feeder to throw out such imperfect or damaged sheets without stopping the printingpress or folding-machine and without folding the paper.

I claim as my invention 1. In combination with the conveying-tapes of a paper-folding machine, one or more stops or gages normally arranged to arrest a sheet traveling on said tapes, the rock-shaft having an arm, said stops or gages being provided with shanks secured to said rock-shaft, the bell-crank lever adapted to be operated at will, and the rod connecting said arm and lever, as and for the purpose specified.

2. The eombinaton of the tolding-table,the folding-rolls, the folding knife, conveyingtapes, the rock-shaft, means, substantially as described, of rocking the same, the rod having a loop secured thereto, and the link con necting said knife and said loop, as and for the purpose specified.

3. The combination of the folding-table, the folding-rolls, the folding-knife,the conveyingtapes, the rock-shaft, means, substantially as described, of rocking the same, a rod having a loop secured thereto, the link connecting said knife and said loop, and one or more gages normally arranged to arrest a sheet traveling on said tapes, as and for the purpose specified.

LOUIS P. BRAULT.

\Vitnesses:

ALBERT M. MooRE, E. WV. THOMPSON.

My invention enables the k 

